US5129431AExpiredUtility
Giver for a gripper loom
Est. expiryFeb 5, 2010(expired)· nominal 20-yr term from priority
Inventors:Angelo Stacher
D03D 47/233
53
PatentIndex Score
7
Cited by
9
References
19
Claims
Abstract
A giver for a gripper loom having horizontal weft feeding has a head open at the top. A wide slideway ensures gentle treatment of the warp yarns and the low center of gravity reduces the tendency of the head to disengage from the slideway when the weft yarn is being drawn into the shed. A yarn clamp which keeps the weft yarn horizontal has a fin-like member which deflects the weft yarn downwards before entry into the clamp.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1. A giver for a gripper loom, said giver comprising a head for securement to a flexible picking tape, said head having an open top and a partly convex and partly flat bottom defining a slideway; a top guide for a weft yarn on one side of said head; and a yarn clamp on an opposite side of said head for clamping a weft yarn therein, said clamp being disposed relative to said guide to hold a weft yarn therebetween within said head and at an angle to a cloth plane of less than 45°.
2. A giver as set forth in claim 1 wherein said head has a sheet metal body of channel-shape with said clamp secured within said body.
3. A giver as set forth in claim 2 wherein said yarn guide is integrally formed with said body and defines a groove for guiding a weft yarn along one side of said body.
4. A giver as set forth in claim 1 wherein said head has a wall on one side and said guide has a recess in said wall for receiving a weft yarn.
5. A giver as set forth in claim 1 which further comprises a roof-like portion extending from said yarn guide towards said clamp to cover over a weft yarn disposed between said guide and said clamp.
6. A giver as set forth in claim 1 wherein said head has a wall on a side near a reed and a roof-like portion extending outwardly from said wall.
7. A giver as set forth in claim 1 which further comprises a yarn-deflecting fin depending from said clamp to hold down a weft yarn extending between said guide and said clamp.
8. A giver a set forth in claim 7 wherein said bottom has an aperture below said fin.
9. A giver as set forth in claim 1 wherein said yarn guide and said clamp are horizontally spaced apart to hold a weft yarn therebetween in a substantially horizontal disposition.
10. A giver as set forth in claim 1 wherein said head has a lateral wall adjacent said clamp and a recess in said wall aligned with said clamp to permit suctioning out of fibers from said clamp through said recess.
11. A giver for a gripper loom, said giver comprising a body of channel-shape having an open top, a bottom defining a slideway, and a yarn guide on one side; and a yarn clamp secured in said body for clamping a weft yarn therein, said clamp being disposed relative to said yarn guide to hold a yarn therebetween within said body and at an acute angle to said yarn guide.
12. A giver as set forth in claim 11 wherein said yarn guide is integrally formed with said body and defines a groove for guiding a weft yarn along one side of said body.
13. A giver as set forth in claim 11 wherein said body has an upstanding wall on said one side and said yarn guide extends therefrom.
14. A giver as set forth in claim 13 wherein said yarn guide extends inwardly of said wall and has a recess for receiving a weft yarn.
15. A giver as set forth in claim 14 which further comprises a roof-like portion extending from said yarn guide towards said clamp to cover a weft yarn.
16. A giver as set forth in claim 13 which further comprises a roof-like portion extending forwardly of said yarn guide to guide said body under a top shed of warp yarns.
17. A giver as set forth in claim 11 which further comprises a yarn-deflecting fin depending from said clamp to hold down a weft yarn extending between said guide and said clamp.
18. A giver as set forth in claim 17 wherein said bottom has an aperture below said fin.
19. A giver as set forth in claim 11 wherein said body has a lateral wall adjacent said clamp and a recess in said wall aligned with said clamp to permit suctioning out of fibers from said clamp through said recess.Join the waitlist — get patent alerts
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